Control of hydrogen concentration in the power supply and control systems of a mining battery locomotive with energy recuperation applied
Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2015, Vol 522, Issue 2
Abstract
Better efficiency of mining machines is one of the major objectives pursued by developers, manufacturers and users, as it refers directly to functional and economic aspects of these machines exploitation. In the case of mining battery locomotives, an important factor to raise their working efficiency is the ability of their electrical system to recuperate energy. Modern power and electronic systems have high efficiency and are able to recuperate energy in a wide range. However, there is an issue about the structure of the power supply source, i.e. batteries. Mining battery locomotives are powered by batteries made of lead-acid cells which emit hydrogen in the process of electric braking (energy recuperation). This hydrogen, in certain concentrations, becomes an explosive gas. The issue of secure application of lead-acid cells inspired the Institute of Mining Technology KOMAG to launch research aimed at the identification of the concentration of hydrogen emitted by the batteries during the locomotive operations in real conditions. The paper features a method of the research and its results. Additionally, the possibilities were presented how to provide effective energy recuperation with monitoring safe values of hydrogen concentration.
Authors and Affiliations
Bartosz Polnik, Wojciech Kurpiel, Bogdan Miedziński
Keywords
Related Articles
- EP ID EP283741
- DOI -
- Views 125
- Downloads 0
Armored face conveyor’s smooth velocity control for increased durability
The article presents the concept and assumptions concerning the smooth velocity control of an armored face conveyor, and also (on this basis) the subsequent transport conveyors used in an underground coal mine. The most-...
Using GPU acceleration in solving selected kinetic coal gasification models
Coal gasification is recognized as one of clean coal technologies. Though it has been known for a relatively long time, its complexity still challenges scientists all over the world. One of the tools used in the research...
About requirements for diesel drives used in hard coal mine underground workings
Due to the rapid increase of using transportation machines with diesel drives in hard coal mine underground workings, the technical and operational requirements for these drives are analyzed. The ambiguity of the Europea...
Condition monitoring experiences of machines in Hungarian Márkushegy underground mine
This paper presents the results obtained during the years of vibration and current signature monitoring at the Márkushegy mining plant before its final closure. The large amount of recorded data has been used for a stati...
Autonomous fiber-optic gas monitoring system with thermoelectric power supply
This paper presents the concept of an autonomous measuring instrument powered by a locally accessible source of heat with a contact surface area of over a dozen or several dozen cm2 and a temperature higher or lower than...